I'll put in my $.02 from a dad that has a few kids, which may provide a different perspective.
Dating single moms are only conducive if you also are a single dad, want a quick lay/fwb setup, or don't mind embarking on a LTR with the possibility of marriage and/or being part of her kid's lives.
Note that you will ALWAY play second fiddle to her kids in all ways: Time, attention, money allocation, affection, scheduling, etc.
If you don't fit into the above or you require the full blown attention from a female, then I would avoid single moms to save yourself headaches. My $.02